Module jakarta.persistence

Package jakarta.persistence

Interface ConnectionFunction<C,T>

Type Parameters:

C - the connection type, usually java.sql.Connection

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface ConnectionFunction<C,T>

A function which makes use of a native database connection to compute a result. The connection is usually a JDBC connection.

Since:

3.2

See Also:

• ConnectionConsumer
• EntityManager.callWithConnection(ConnectionFunction)

Method Summary

Modifier and Type	Method	Description
T	apply(C connection)	Compute a result using the given connection.

Method Details

apply

T apply(C connection)
 throws Exception

Compute a result using the given connection.

Parameters:

connection - the connection to use

Returns:

the result

Throws:

Exception - if a problem occurs calling the connection, usually a java.sql.SQLException